danielfaerber

If you install this plugin on your blog, your visitors get two buttons below your posts and pages:
<ul>
<li>A Facebook “share” button</li>
<li>and a Twitter “tweet” button.</li>
</ul>
These are not the standard Like- and Tweet-Buttons, which also display how many people have clicked on it so far, but basically pure and simple html-links.
DISADVANTAGE:
<ul>
<li>Less interaction.</li>
</ul>
ADVANTAGES:
<ul>
<li>It’s faster. Your blog does not have to contact Facebook’s and Twitter’s servers.</li>
<li>Better privacy. No information about your visitors is sent to Facebook or Twitter. Nota bene: Facebook’s standard like button allows Facebook to track your visitors even if they do not click on it!</li>
</ul>

Fastershare

This plugin allows your visitors to share your posts on Facebook and Twitter, without JavaScript or iFrames.

Pierre Lebedel

The Kodex Posts likes plugin allows your visitors and logged in users to like or dislike your posts, pages, and custom post types. 
The AJaX based interface is clean and fully customizable. 
The Dislike button is not required, and the buttons labels are editables. 
The buttons shows their counter. 
Shortcodes are availables for display the buttons on your post content and for the Like counter only. 
In the admin interface, columns are showing the actual count, and there is a metabox in the editon page.

Kodex Posts likes

A simple interface for including like/dislike buttons on posts. Keep up the good work! 
In future I'd love to see a dashboard area where you get a quick snapshot each posts likes / dislikes which you could sort, search and filter to make it easier to review the feedback, but it's not essential.



Really Great Plugin

It does exactly what I need. It is very simple and works well. Seems to be a clean install and lightweight functionality.  Hopefully the author comes back to do an update soon. Many thanks for this wonderful plug in.

This plug in is simple and great. Out dated but it still works.

A simple AJaX based WordPress Plugin which allows your visitors to like or dislike posts, pages and cutom post types.

Fastershare vs Kodex Posts likes